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MACHINE F011 MAKING AND RBPAIRING Roms.

APPLIUATION FILED JULY 9, 1903.

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MACHINE FOR MAKING AND RBPAIRING ROADS.

APPLIOATIGN FILED JULY 9, 1903.

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@bm/ma! man@ No. 753,231. PATENTBD MARI, 1904.

- A. CAMERON.

MACHINE FOB. MAKING AND REPAIRING ROADS.

APPLICATION FILED JULY g. 1903.

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No. 753,231. PATENTED MAR. 1, 1904.

A. CAMERON.l

MACHINE FOR MAKING AND RBPAIRING ROADS.

l APPLICATION FILED JULY 9. 1903. N0 MODEL 5 SHEETS-SHEET 4.

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PATENTED MAR. 1, 1904.

A. CAMERON. v MACHINE POR MAKING AND REPAIRING ROADS.

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PATENT OFFICE, g

ARTHUR CAMERON, OF CHICAGO,

DRILL AND MANUFACTURING;

ILLINOIS, AssIGNoR `"IO NATIONAL" l COMPANY, or CHICAGO, ILLINOIS,

A CORPORATION OF WEST VIRGINIA. I

MACHINE Fon MAKING.

AND REPAIRING ROADS.I

SPECIFICATION forming part of Letters Patent No. 753,231, dated March 1, 1904.

. Application filed July 9, 1903.

- To all tch/0m it may concern:

Be it known that I, ARTHUR CAMEROII, a

citizen of the United States, residing at Chicago, in thecounty of Cook and State lof Illi- March'BI, l1903, and numbered 724,042, the

rear supporting-wheels have separate axle portions arranged for independent longitudinal adjustment and pivotally connected with the body-frame of the machine respectively -at opposite sides of a point between the rear wheels, the separate axle portions thus arranged having shifting connections with swinging boxes-or bearings which are pivoted to the body-frame, so as to practically pivotally connect such shifting axle portions with the body-frame, as above stated. As a result of such arrangement the spread of the rear wheels can be varied and each rear-axle portion canv be adjusted longitudinally and indeswing of such axle portions for vthe purpose of skewing the rear wheels said rear-axle portions will maintain a condition of relative parallelism.

A featureof my invention consists in simpliied -m'eans for swinging the longitudinallyadjustable rear-axle section, the .device shown in said patent for thus swinging the rear-axle sections being a chain engagingthc free ends of swinging bearingsor boxes with which the rear-axle portions have sliding connections and means for Operating such chain in .opposite direction in alternation.-

A further feature of my invention consists in simplified and improved means for laterally shifting toward either side of the machine a suspended support for the Vscraper-blade.

In the accompanying drawings, Figure lis a top plan view of a machine for making and repairing roads embodying the principles of my invention. Fig. 2 is asection on line 2 2 In Fig. l, portions of the machine being serai No. 164,906. (Namen.) Y

broken away for convenience'of illustration. Fig. 3 is a detail showing 1n plan view a porsaid l shifting device being includedy in mechanism for laterally shifting the scraper-blade support. Fig. 4 is a detail showing in elevaand further illustrating the shifting device v-.Fig. 5V isan enlarged plan view'of .the major portion of the mechanismA for laterally shifting the scraper-blade support. Fig. V6 shows the mechanism of Fig. 5 -in side elevation. Fig. 7 is a rear end elevation of a portion of the machine, a part of the main frame .being broken away for convenience of illustration. 1 Fig. 8 is a top plan view mainly illustrating a this view the vertical rotary shafts illustrated in Fig. l are shown in cross-section. Fig. 9 is a view similar to Fig. 7, illustrating a modified form of vdevice for swinging the rear-axle portions. modified device. for swinging the rear-axle portions, the several rotary shafts being in section on line l()a 10. The body-frame A of the machine is suppair of rear wheelsV C C. .The transverselyarranged scraper-blade VD is supported `between the front and rear wheels and pivotally connected in any suitable way with a portions or sections G G. These rear-axle portions are respectively pivotally connected with the body-frame at opposite sides of a tion of a rack-bar and shifting device thereon,

tion a portion of the rack illustrated in Fig. 3

and a portion of the shifting mechanisnn device for swinging the rear-axle portions. In.

Fig. l0 is a topplan view of `said ported by a pair of front wheels B B and a draft attachment or draw-bar E, which is iny longitudinally-adjustable and' swinging axlel bearing H is provided at one end with eyes 1- for a pivot, which may, for example, be rotary shaft 2, having a pinion 3, which engages a rack on the axle portion in the box H, as in the patent hereinbefore referred to, and in like manner the box H can be attached to the' body-frame by a pivot consisting of a rotary portions.

rod or shaft 4, having a pinion 5, which engages a rack on the axle portion G, it being understood that these boxes H and H have suitable side openings, so that the pinions 3 and 5 mayengage the racks on the rear-axle As thus far described the rear-axle portions and the swinging bearings or boxes with which they have sliding connections are substantially the same as in said patent. In order, however, to swing the rear-axle portions for the purpose of skewing the rear wheels and at the same time maintain these rear-axle portions in a condition of relative parallelism, I support upon the body-frame an oscillatory member which connects with the boxes or bearings H H at opposite sides ofv the point about which it oscillates and attach this oscillatory member to the said boxes or bearings by yielding or self-adj usting connections which insure a condition ofparallelism between the two axle portions.

In Figs. 7 and 8 the oscillatory member I consists of a bar or a pair of connected arms end portion of the axle box or bearing H by arranged to oscillate about a vertical axis between the outer ends of such arms, the outer end of one arm being connected with the free a link 6 and the outer end of the other arm being connected with. the opposite free end portion of the box or bearing Hl by a similar link 7. The bar thus providing a pair of arms is operated by a vertically-arranged rotary shaft K, supported upon vthe body-frame and having a hand-wheel or crank-handle 8 within convenient reach of an attendant standing upon the rear platform L. This shaft K can be turned in opposite directions in alternation according to the desired relative positions of the rear wheels, and by reason of the link connections between the oscillatory device and the axle-box the latter will always remain parallel. In Fig. 8 the axle-boxes are shown in full lines at right angles to the length of the body-frame and in dotted lines oblique thereto, it being understood that the shifting of the axle-boxes from one to the other of these Apositions is accomplished by simply swinging the vibratory or oscillatory device I, which connects with the axle-boxes, respectively, at opposite sides of the axis of the rotary shaft K. Y

Inv Figs. 9 and 10 the oscillatory member M for swinging the rear-axle portions consists of a plate having shifting pivotal connections with the axle-boxes, each of such shifting pivotal connections being practically formed by a stud or small roll on one member engaging in a slot or way in or on the other member. For example, each axle-box can have a longitudinal slot or way for a stud or the like on the oscillatory member M. As indicated in Fig. 10, the axle-boxes have slots or ways 9 formed upon them and the oscillatory plate M is provided with a couple of downwardlyprojecting studs l0, carrying small rolls ll, Fig. 9, which engage in the slots or ways 9. These slots or ways are illustrated by dotted lines .in Fig. 10, while in Fig. 9 one of such ways is shown formed uponthe axle-box H', which latter is partly broken away, so as to illustrate the guideway thereon. words, each axle-box may, for example, have upon its top side an oblong raised portion 12, adapted to form one of the guide'ways or slots 9. The plate M is securedV to a rotary shaft K, corresponding with shaft K in Figs. 7 and 8. By these arrangements the objection- In other v able features incident to the chains isavoided A boxes, thereby keeping the latter parallel, it

being observed that these studs or rolls are at opposite sides of the axis about which the plate M oscillates.

When, for example, the oscillator I is employed and is turned or swung about a vertical axis intermediate of its connections with the swinging extensible rear-axle portions or sections, the space between these lextensible axle portions will be widened or contracted in width, according to the direction in which the oscillator is turned, and during such movements the links 6 and 7, which are pivoted to the oscillator and to the housings or pivoted sections H H of the axle portions, will act as yielding self-adjusting connections, permitting the required action and at the same time preservinga condition of parallelism between the extensible axle portions. When the oscillatorM is employed, the action will be substantially the same, the shifting pivotal ,connections between the oscillator and the housings or sections H H permitting such action and keeping the extensible axle portions relatively parallel. Manifestly the plate M is, in effect, a bar or an oblong plate pivoted between its ends and having its ends provided with studs. or the like engaging in slots or IOO IIO

ways in or .on the housings H and H', and hence it is substantially the same in principle as the bar I, the dierence in details of application being its special connection with the said housings. A In both instances, however, the connections between the oscillator and the housings or non-sliding parts of the extensible swinging rear-axle portions are self-adjusting power-transmitting connections which accommodate themselves to the relative positions of the axle portions and-the oscillator.

The support or carrier F for the scraperblade can be of any well-known or Vdesired construction suitable for the purposes for which it is intended, the construction illustrated being substantially the same as in the patent hereinbefore referred to, and therefore not requiring special description as to details.

This support or carrier is also shown suspended, as in said patent, so that it can be raised and lowered and also be shifted toward either side of the machine. With reference to my improved device for thus laterally shifting the support or carrier for the scraperblade D the body-frame of themachine is provided with a transversely-arranged rack\ bar N, which is rigidly secured at its ends to opposite side portions of the body-frame and adapted to form a track or guide support for a slide or shifting bearing O, which is best shown in Figs. 3 and 6. The bearing O, which is thus supported to shift transversely to the length of the machine, is provided witha pinion 13, arranged to engage the toothed portion of the rack-bar N, so that when this pinion is operated it will cause the bearing O to slide along the rack-bar in` a direction determined by the direction in which the pinion is revolved. As a simple and effective construction the bearing() is shaped like a clevis, as in Fig. 6, so as to embrace and slide upon the untoothed portion of the rackbar N and also to provide it with upper and lower bearing portions 14 for Va rotary spindle 15, upon which the pinion 13 is secured at a point to place such pinion between the bearing portions 14 and permit it to engage the toothed portion ofthe rack-bar. As a means for operating the pinion 13 its spindle 15 has its upper end portion provided with a double ratchet P-that is to say, it is provided with a ratchet-wheel, vwhich is secured upon the spindle and formed with two annular series 16 and 17 of ratchet-teeth, the said two series of teeth being respectively adapted for right and left pawls. As a means forl operating the pawls, which are provided for'engaging the double ratchet-wheel, a vibratory hand-lever Q is supported at one end to swing about the vertical axis of the spindle 15, and this handlever is provided with a double-armed pawl R, having one'portion of its arms adapted for engagement with the ratchet-teeth 16 and having its opposite arm adapted for engagement Vwith ratchet-teeth 17. This double-armed pawl'is pivoted, as at 18, upon the vibratory lever Q and is connected by a jointed rod or link connection S witha thumb-latch 19 on the lever. A portion of the rod or link connectionS works through guide-bearings 2O on the lever and is provided with astop or collar 21,

forming an abutment-for one end of a spring 22.A It has its opposite end arranged to bear against one of the guide-bearings 20, as vin Figs. 5 and 6. When the thumb-latch 1 9 is in the position shown inFig. 5, one of the pawlarms will be 'in position to engage with one s et of the ratchet-teeth, and the spring 22 will be compressed, whereby a vibratory lmovement imparted to lever Q will operate the double ratchet-wheel with a stepby -step movement, so as to cause the slide O to shift toward one side of theV machine. In order to cause this slide O to shift toward the opposite side of the machine, the operator will swing the thumb-latch 19 away from the hand-lever,

whereby the spring will operate to throw the opposite arm of the pawl in engagementwith the other set of the ratchet-teeth. In order toprevent back movement on. the part of the ratchet while it is being operated and to lock it into position after the adjustment has been accomplished, oneend of the lever Q` is provided with a. double-armed-locking -pawl T, having one arm for engaging one set and its opposite arm lfor engaging the other set of the ratchet-teeth. The locking-pawl T is suitably connected with the locking-pawl Ras, for example, a rod`23`, attached to the operating-pawl R, is provided with guide-bearings 24: for a slide-rod 25, `which is attached to the locking-pawl T and subject to a spring 26, arranged between the guide-bearings 24, with one end engaging one of said guide-bearings and its opposite en d engaging a'snitable stop orthe like on the slide-rod 25.

In order to laterally shift the support or carrier F for the scraper-blade when the bearing Ioo O is shifted toward either side of the machine, 1

'suitable powertransmitting connection is link U, Fig. 2, pivotally connected at one end with the lower portion of the bearing O and IIE) similarly connected at its opposite lower end with a portion of a carrier F-for example,

with a cross-bar 25, secured to and forminga portion of said carrier.

In Fig. 1 the hand-lever Q is arranged to extend forwardly from the rack-bar, so as to place its handle N within convenient reach of a driver occupying the seat 26; but, if preferred, the hand-lever could be extended back, so as to be available to an attendant standing the organization-of parts of A-the machine not herein specifically described could easily be made, so as to provide suitable space or clearance for the hand-lever.

When the reciprocative operating member, such as the vibratory lever Q, is actuated for the purpose of operating the pinion 13, the said lever also shifts laterally, as it is fulcrumed upon the slide O, and hence its fulcral bearing shifts with the said slide. Broadly considered', the shifting bearing O carries a pinion which engages the rack for the purpose of moving such bearing when the pinion is operated, and said pinion is operated by a step-by-step movement, which is in turn actuated by a reciprocative member available to an attendant upon the machine whether such attendant lbe upon the drivers seat or upon the rear platform.

With further reference to the oscillatory member for swinging the rear-axle sections or portions it will be seen that they are connected with the oscillatory member by independent self adjusting power transmitting connections, so that when the oscillatory member is actuated one of these power-transmitting connections will have a yielding or selfadjusting action with reference to one rear wheel, while the other will have an independent yielding or self-adjusting action with reference to the opposite wheel.

What I claim as my invention is- 1. In a machine for making and repairing roads,a pair of independent, swinging, longitudinally adjustable axle sections for the rear wheels having pivotal connections with the body-frame respectively at opposite sides of a point between the rear wheels; and an oscillatory member having independent selfadjusting power-transmitting connections with the swinging extensible rear-axle section.

2. In a machine for making and repairing roads, a pair of independent, swinging, longitudinally-adjustable axle-sections for the rear wheels having pivotal connections-with the body-frame respectivelyat `opposite sides of a point between the rear wheels; an oscilla-v tory member supported upon the body-frame and having self-adjusting power-transmitting connections with the swinging extensible rearaxle sections; and a rotary shaft for operating such oscillatory member.

3. In a machine forl making and repairing roads, a wheeled body-frame provided with a 4. In a machine for' making and repairing roads, a wheeled body-frame provided with a scraper-blade; independent longitudinally-adjustable, swinging rear-axle portions; and a double-armed oscillatory member for swinging such axle portions having its arms respectively connected with one and the other of the two swinging rear-axle portions byself-adjusting power-transmitting connections.

5. In a machine for making and repairing roads, a wheeled body-frame having a transversely-arranged rack-bar secured thereto; a member supported upon and arranged to shift along the transversely-arranged rack-bar; a pinion connected with said shifting member and arranged to engage the rack-bar; a device for operating the pinion; a scraper-blade supported for movement toward opposite sides of the machine; and power-transmitting connection between the scraper-blade and said shiftijng member which is supported upon the rack- 6. Ina machine for making and repairing roads, a wheeled body-frame having a transversely-arranged rack-bar secured thereto; a slide supported on and arranged to shift along the rack-bar; a pinion mounted upon the slide; a device for operating the pinion; a scraperblade; a laterally movable carrier for the scraper-blade; and a connecting-rod between the carrier and the slide.

7. In a machine for making and repairing roads, a wheeled body-frame provided with a transversely arranged rack; a bearing sup- 'port to shift along the rack and provided with a pinionby which the rack is engaged; 4a stepby-step-movement device for operating the pinion in opposite directions in alternation; a reciprocative member for actuating'the stepby-step-movement device; a scraper-blade supported for shift toward opposite sides of the machine; and power-transmitting connection between the scraper-blade and the shifting bearing which carries the pinion.

8. In a machine for making and repairing roads, a wheeled body-frame having a transversely-arranged rack secured thereto, and provided with a scraper-blade supported for side shift; a slide supported upon the rackbar and provided with 'a' pinion engaging the rack-bar; a double ratchet secured to the pinion and having two sets of teeth respectively right and left; a vibratory lever and a rightand-left pawl device arranged upon such lever and adapted for engaging the sets of ratchet-teeth in alternation.

9. In a machine for making and repairing roads, a wheeled body-frame having a transversely-arranged rack secured thereto, and provided with a scraper-blade supported for side shift; a slide supported upon the rackbar and provided with a pinion arranged to engage the rack; a double ratchet secured to the pinion and having two sets of teeth re- IOO IIO

slide supported upon the rack-bar and connected with the scraper-blade; a pinion on the slide arranged to engage the rack-bar; a double pawl P on the pinion; a double-armed ratchet for operating the pawl; a hand-lever supporting the 4double-armed pawl; and a double-armed locking-pawl T also arranged upon the hand-lever.

11. In a machine for making and repairing roads, a wheeled body-frame having a transversely-arranged rack-har secured thereto; devis-shaped slide supported upon the rackbar and having upper and lower portions af- `iording bearings for a spindle; a pinion secured upon a vertical spindle and engaging the toothed portion of the rack-har, said pinion being arranged between said upper and lower hearing portions and having its spindle engaging therein; a ratchet secured upon the spindle; and a pawl device for actuating the ratchet.

ARTHUR CAMERON.

Witnesses:

` CHARLES G. PAGE,

OTTIME C. FREIBERG. 

